Skip to main content
SpringerLink
Log in

Improvement in toughness of Fe-Cr-Mn-C steels by thermal-mechanical treatments

  • Published:
Metallurgical Transactions A Aims and scope Submit manuscript

Abstract

High-Cr (about 10 wt pct) Fe-Cr-Mn-C microcomposite lath martensite-austenite structural steels have been developed in order to achieve high strength and high toughness for applications in corrosive environments. Processing by controlled hot rolling and air cooling produces a finegrained alloy with excellent toughness. The alloys are air hardenable, and the microstructure consists of lath martensite packets with retained austenite around the laths. The laths contain fine intralath autotempered carbides. The mechanical properties of the steel so produced are found to be superior to those treated by conventional methods of single or cyclic austenitization treatment. Optical metallography, transmission electron microscopy and scanning electron microscopy (SEM) have been used to characterize the effect of various process variables on the mechanical properties.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. J. McMahon and G. Thomas: Proc. 3rd Int. Conf. on Strength of Metals and Alloys, Inst, of Metals, London, 1973, vol. 1, pp. 180–83.

    Google Scholar 

  2. B.V.N. Rao and G. Thomas: Metall. Trans. A, 1980, vol. 11A, pp. 441–57.

    CAS  Google Scholar 

  3. B.V.N. Rao, R.W. Miller, and G. Thomas: Proc. 16th Int. Heat Treatment Conf., The Metals Society, London, 1976, pp. 75–85.

    Google Scholar 

  4. G. Thomas: Batelle Colloquium on Fundamental Aspects of Structural Alloy Design, R.I. Jaffee and B.A. Wilcox, eds., Plenum Press, New York, NY, 1977, pp. 331–61.

    Google Scholar 

  5. M.F. Carlson, B.V.N. Rao, and G. Thomas:Metall. Trans. A, 1979, vol. 10A, pp. 1273–84.

    CAS  Google Scholar 

  6. M. Sarikaya, B.G. Steinberg, and G. Thomas:Metall. Trans. A, 1982, vol. 13A, pp. 2227–37.

    Google Scholar 

  7. B.V.N. Rao and G. Thomas:Mater. Sci. Eng., 1975, vol. 20, p. 195; see also B.V.N. Rao: Ph.D. Thesis, University of California at Berkeley, Lawrence Berkeley Laboratory Rep. 7361, Berkeley, CA.

    Article  CAS  Google Scholar 

  8. G. Thomas, J.K. Kim, D. Manojlovic, and R. Milovic: in Proc. Micro and Properties of HSLA Steels, A.J. de Ardo, ed., TMS-AIME, Warrendale, PA, 1988, pp. 399–414. 9. G. Thomas: Iron Steel Int., 1973, vol. 46, p. 451-61.

    Google Scholar 

  9. M. Raghavan and G. Thomas:Metall. Trans. A, 1979, vol. 10A, pp. 1665–73.

    CAS  Google Scholar 

  10. M. Raghavan and G. Thomas:Metall. Trans. A, 1971, vol. 2, pp. 3433–39.

    CAS  Google Scholar 

  11. R.A. Clark and G. Thomas:Metall. Trans. A, 1975, vol. 6A, pp. 969–79.

    CAS  Google Scholar 

  12. P.T. Lovejoy: in Metallurgy of Stainless Steels, I.M. Bernstein, ed., vol. 6.1.

  13. F.B. Pickering: Int. Met. Rev., 1976, vol. 211, p. 227.

    Google Scholar 

  14. J.Z. Briggs and J.D. Parker: The Super 12Cr Steels, Climax Molybdenum Co., Ann Arbor, MI, 1965.

    Google Scholar 

  15. K.J. Irvine, D.J. Crowe, and F.B. Pickering: J. Iron Steel Inst., 1960, vol. 187, p. 386.

    Google Scholar 

  16. R. Ramesh: M.S. Thesis, University of California at Berkeley, Lawrence Berkeley Laboratory Rep. 26902, Berkeley, CA, 1986.

    Google Scholar 

  17. R.W.K. Honeycombe: Steels, Microstructure and Properties, Edward Arnold Co. and ASM, 1982.

  18. J.V. Bee, P.R. Howell, and R.W.K. Honeycombe:Metall. Trans. A, 1979, vol. 10A, pp. 1207–12, 1213-22.

    CAS  Google Scholar 

  19. W. Stevens and A.G. Haynes:J. Iron Steel Inst., 1956, vol. 183, p. 349.

    Google Scholar 

  20. G. Thomas:Metall. Trans. A, 1978, vol. 9A, pp. 439–50.

    CAS  Google Scholar 

  21. R.M. Horn and R.O. Ritchie:Metall. Trans. A, 1978, vol. 9A, pp. 1039–53.

    CAS  Google Scholar 

  22. M. Sarikaya, A.K. Jhingan, and G. Thomas:Metall. Trans. A, 1983, vol. 14A, pp. 1121–33.

    CAS  Google Scholar 

  23. B. Protheroe: Tests on corrosion resistance in acid environments, South African Chamber of Mines, Pretoria, South Africa, 1983.

    Google Scholar 

  24. ASM Handbook, 9th ed., vol. 1, 1984.

Download references

Author information

Authors and Affiliations

  1. Pohang, Korea

    R. Ramesh (Scientist with Postéc) & N. J. Kim (Scientist with Postéc)

  2. Bellcore, 07701, Red Bank, NJ

    R. Ramesh (Scientist with Postéc) & N. J. Kim (Scientist with Postéc)

  3. Department of Materials Science and Mineral Engineering, University of California at Berkeley, Materials and Chemical Sciences Division, Lawrence Berkeley Laboratory, 94720, Berkeley, CA

    G. Thomas (Professor)

Authors
  1. R. Ramesh
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. J. Kim
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. G. Thomas
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

R. RAMESH and N.J. KIM, formerly with the Department of Materials Science and Mineral Engineering, University of California at Berkeley

Rights and permissions

Reprints and permissions

About this article

Cite this article

Ramesh, R., Kim, N.J. & Thomas, G. Improvement in toughness of Fe-Cr-Mn-C steels by thermal-mechanical treatments. Metall Trans A 21, 683–695 (1990). https://doi.org/10.1007/BF02671939

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02671939

Keywords

Search

Navigation